/*
 * (c) Copyright 2007, 2008, 2009 Hewlett-Packard Development Company, LP
 * All rights reserved.
 * [See end of file]
 */

package com.hp.hpl.jena.tdb.graph;

import com.hp.hpl.jena.graph.Graph;
import com.hp.hpl.jena.graph.Triple;

import com.hp.hpl.jena.sparql.modify.GraphStoreEvents;
import com.hp.hpl.jena.sparql.util.graph.GraphListenerBase;

import com.hp.hpl.jena.tdb.lib.Sync;


/** Listen for end of update events and sync when seen */

public class UpdateListener extends GraphListenerBase
{
    Sync sync ;
    
    public UpdateListener(Sync g)
    {
        sync = g ;
    }

    @Override
    public void notifyEvent(Graph source, Object value)
    {
        if ( value.equals(GraphStoreEvents.RequestStartEvent) )
        {}
        else if ( value.equals(GraphStoreEvents.RequestFinishEvent) )
        {
            sync.sync(false) ;
        }

        super.notifyEvent(source, value) ;
    }
    
    
    // ---- Ignore these.
    
    @Override
    protected void addEvent(Triple t)
    { }

    @Override
    protected void deleteEvent(Triple t)
    {}

}

/*
 * (c) Copyright 2007, 2008, 2009 Hewlett-Packard Development Company, LP
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */